Kruger Ecowatt K320 Series Operation Manual page 281

Ecowatt Drive K320 series
®
Subject
Transformer
and reactor
Electromagnet
ic contactor
and relay
Control Control PCB,
connector
circuit
Cooling fan
Cooling
system
Ventilation
duct
For more details about maintenance, contact the local Kruger office, or visit our website
www.krugerfan.com.
Item
Check whether there is
unusual vibration sounds
or smells.
Check whether there are
vibration sounds in the
workshop.
Check whether the contacts
are in good contact.
Check whether the screws
and connectors loose.
Check whether there is
unusual smell or
discoloration.
Check whether there are
cracks, damage,
deformation, or rust.
Check whether there is
electrolyte leakage or
deformation.
Check whether there are
unusual sounds or
vibration.
Check whether the bolts
loose.
Check whether there is
discoloration caused due to
overheat.
Check whether there are
foreign matters blocking or
attached to the cooling fan,
air inlets, or air outlets.
Method
Auditory, olfactory,
and visual
inspection
Auditory
inspection
Visual inspection
Screw them up.
Olfactory and
visual inspection
Visual inspection
Visual inspection,
and determine the
service life based
on the
maintenance
information.
Auditory and
visual inspection,
and turn the fan
blades with your
hand.
Screw them up.
Visual inspection,
and determine the
service life based
on the
maintenance
information.
Visual inspection
-272-
Maintenance
Criterion
No exception
occurs.
No exception
occurs.
No exception
occurs.
No exception
occurs.
No exception
occurs.
No exception
occurs.
No exception
occurs.
The rotation is
smooth.
No exception
occurs.
No exception
occurs.
No exception
occurs.